Window sash construction



1942- H. A. NICOLAI WINDOW SASH CONSTRUCTION Filed Dec. 11, 1939 I wamzz aw??? 6W 4 ATTb N Patented Aug. 4, 1942 UNITED STATES PATENTQFFICE WINDOW SASH CONSTRUCTION Harold A. Nicolai, Detroit, Mich. Application December 11, 1939, Serial No. 308,513

6 Claims. (01. 20--56.5)

This invention relates to window sash conotherwise suitably joined in a permanent fashion at its corners as It, so that it allows no point of entry for moisture or air between the glass panes in the assembled structure. A primary insulating strip l of ribber, Duprene or other similar material is fastened completely around the outer edge of each pane of glass I6. It is convenient if this insulating strip has been formed or molded in the U-shape shown in the drawing as this facilitates securing it to the glass and does away with the necessity of any adhesive of a wooden sash due to the condensation of moisture. This is accomplishedby a-novel sealing construction which excludes moisture from the insulating air chamber and, therefore, prevents condensation on the sash and also a steaming of the windows.

A further object of the invention is to provide a simple sash construction which embodies a double seal between the insulating air chamber and the atmosphere.

A further object of the invention is to provide a simple sash construction with the above features which may be easily assembled and readily serviced for'cleaning or replacement.

In the drawing:

Fig. 1 is a face view of the window constructed in accordance with my invention.

Fig. 2 is a partial section upon a larger scale of a complete assembly embodying one form of the invention.

Fig. 3 is a partial section of a complete assembly embodying an alternative form of the invention.

Fig. 4 is a perspective view of a piece' of the metal channel used in the invention.

In illustrating the various embodiments of the present invention, I have shown a window composed of two glass panes, but it will be distinctly understood that it may be designed and used in any multiple arrangement desired.

In addition, although the invention has been illustrated and referred to throughout as a. window, the glass could be colored and used as a portion of a wall or the device could be used, for example, in the construction of refrigerators. Other uses are possible which do not depart from the invention.

substance, The glass is placed within the frame, apane being adjacent each wall of the frame channel. The metallic frame in combination with the primary insulator completely seals the -space between the glass panes from the atmosof the sash by virtue of its being butt-welded or phere. Retaining strips l1 and I8 around the inner and outer edges of the sash are placed and fastened to hold the glass panes in their proper position within the ,frame. A secondary insulator IQ of suitable moisture repellant material separates the glass from the frame channel and the glass from the retaining strip or molding. This secondary insulator l9 protects the primary insulating strip 15 from dust, moisture and temperature changes in addition to its effect of more completely sealing the space between the windows from the atmosphere. The sealing strips [5 and I9, being made of resilient material, are also adapted to absorb shocks which might otherwise injure the windows.

The channel ll may have its walls 20 and 2| bent to any desired shape to accommodate the insulating strips I5. If the suggested U-shaped insulating strip is used, it is convenient to have the channel walls formedclose together at the base of the channel as illustrated by curves 22 and 23 in the drawing. Flat surfaces 24 and 25 should be provided to contact the glass or present a surface for the secondary insulator. Curves 22 and 23 therefore make it possible to have a thin secondary seal l9.

An alternative method of construction is shown in Fig. 3. In this embodiment the base of the frame is wider and the outer and inner edges are curved toward the center of thewindow and toward the panes. The curved portion is made of spring or flexible material and conforms in contour to the edge of the retaining strips I1 and I8, Thus in this alternative construction the compression strips are not adjacent the wooden sash nor directly fastened thereto, being clipped in the frame and rigidly held in place by the spring curved edges of the frame. The same insulating strips could be used here, as described above.

What I claim is:

1. In a window assembly, an outer frame having inwardly projecting tongue means, a continuous channel within said frame receiving said tongue means, flanges on the base of said channel, the free edges of said flanges being flexible and curved inwardly, spaced parallel panes of glass within said frame, each having a margin positioned directly adjacent said channel, molding positioned adjacent the outer and inner margins of said window, said molding secured in position by the flanges of the channel, said glass being retained in assembled position by the said mold-- 118.

2. In a window assembly, an outer frame having inwardly projecting tongue means, a continuous channel within said frame receiving said tongue means, flanges on the base of said channel, the free edges of said flanges being flexible and curved inwardly, spaced parallel panes of nel, the free edges of said flanges being flexible and curved inwardly, spaced parallel pane of glass within said frame, each having a margin positioned directly adjacent said channel, molding positioned adjacent the outer and inner margins of said window, saidmolding secured in position by the flanges of the channel, said glass being retained in assembled position by the said molding, strip sealing means directly adjacent the edges of said panes, and supplementary sealing means spaced slightly from the edges of said pane and retained between said pane and channel and between said retaining means and said pane.

4. In a window assembly, an outer frame having inwardly projecting tongue means, a continuous channel within said frame receiving said tongue means and having a depth greater than said tongue means, said channel being restricted at its base by inward bends in its walls, spaced parallel panes of glass within said frame, each having a margin positioned directly adjacent the narrow section of the said channel, retaini g means held on said frame around the margins f the outer surfaces of said panes to hold the pan s in assembled position, strip sealing means direc ly adjacent the edges of said panes and at least partly positioned within the space provided by the curved channel walls, and supplementary sealing means spaced slightly from the edges of said pane and retained between said channel and said retaining means.

5. In a window assembly, an outer frame having inwardly projecting tongue means, a continuous channel within said frame receiving said tongue means and having a depth greater than said tongue means, said channel being restricted at its base by inward bends in its walls, flanges on the base of said channel, the free edges of said flanges being curved inwardly, spaced parallel panes of glass within saidframe, each having a margin positioned directly adjacent the narrow section of the said channel, molding positioned adjacent the outer and inner margins of said frame, said moldingsecured in position by the flanges of the channel, said glass being retained in assembled position by the said molding, strip sealing means directly adjacent the edges of said panes and positioned adjacent the space provided by the curved channel walls, and supplementary sealing means spaced slightly from the edges of said pane and retained between said channel and said pane and between said retaining means and said pane.

6. In a window assembly a sash having inwardly projecting tongue means, a continuous metallic channel within said sash receiving said tongue means and having flanges on the edges of its depending walls, said flanges contacting said outer frame, spaced parallel panes of glass within said sash each having a. margin positioned directly adjacent said channel, strip members retained against the margins of the outer surface of said panes to hold the panes in assembled position,

strip sealing means around the periphery of said panes contacting said flanges and supplementary sealing means spaced from the edges of said panes and retained between said channel and said strip members.

HAROLD A. NICOLAI. 

